Thermal imaging dataset from composite material academic samples inspected by pulsed thermography

Jorge Erazo-Aux; Humberto Loaiza-Correa; Andres David Restrepo-Giron; Clemente Ibarra-Castanedo; Xavier Maldague

doi:10.1016/j.dib.2020.106313

Thermal imaging dataset from composite material academic samples inspected by pulsed thermography

Data Brief. 2020 Sep 14:32:106313. doi: 10.1016/j.dib.2020.106313. eCollection 2020 Oct.

Authors

Jorge Erazo-Aux^{1

2}, Humberto Loaiza-Correa¹, Andres David Restrepo-Giron¹, Clemente Ibarra-Castanedo³, Xavier Maldague³

Affiliations

¹ Escuela de Ingeniería Eléctrica y Electrónica, Universidad del Valle, Cali, VA 760032, Colombia.
² Facultad de Ingeniería, Institución Universitaria Antonio José Camacho, Cali, VA 760046, Colombia.
³ Computer Vision and Systems Laboratory, Laval University, Quebec City, QC G1V 0A6, Canada.

Abstract

This paper presents a thermal imaging dataset from composite material samples (carbon and glass fiber reinforced plastic) that were inspected by pulsed thermography with the goal of detecting and characterizing subsurface defective zones (Teflon inserts representing delaminations between plies). The pulsed thermography experiment was applied to 6 academic plates (inspected from both sides) all having the dimensions of 300 mm x 300 mm x 2 mm and same distribution of defects but made of different materials: three plates on carbon fiber-reinforced plastic (CFRP) and three plates made on glass fiber reinforced plastic (GFRP) specimens with three different geometries: planar, curved and trapezoidal. Each plate contains 25 inserts having length/depth ratios between 1.7 and 75. Two FX60 BALCAR photographic flashes (6.2 kJ per flash) were used to generate the heat pulse (2 ms duration), an X6900 FLIR infrared camera using ResearchIR software to record the thermal images and a custom-built software/control unit to synchronize data recording with pulse generation. Finally, the dataset proposed consists of 12 sequences of approximately 2000 images of 512 × 512 pixels each.

Keywords: Composite materials; Non-destructive testing; Pulsed thermography; Thermal imaging.